Not vented; not uttered; not opened for utterance or emission. Fletcher, Mad Lover, ii.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. not provided with vents
Word Usage
"The entire lab stank from chemicals in unvented storage cabinets, and became lachrymatory when reactions using excess ethyl bromoacetate had to be worked up outside the hood."